Featured Aquarium: The Aquarium of Andrey Ospin

My first try with this hobby began in 1978 with keeping
fishes and invertebrates from the Black sea. Possibility
appeared in consequence to gain tropical fish, anemones and
corals.

My current aquarium is 600 L (155 g) and was
established in 1989. It has outlived already three
exchanges. My last aquarium was reconstructed April 2
2005 to accommodate about 70 kg of live rock, with a 10-12 cm
DSB of aragonite sand.

Water circulation - TUNZE-7400/2 with comptroller
TUNZE-7091 (works in mode of the wave) and one powerhead HAGEN
-420.

Lightning - I use an Arcadia 3 Series Pendant light system
with two 150W MH (BLV 14000K), two fluorescent lights of the
standard T8 on SYLVANIA CORALSTAR 30 W / ACTINIC, with built in
light timers (separate cut-in MH and LL). This is 20 cm (8
inches) from the surface.

Sump is 100 L split into two parts, one with the return flow
from the main tank with the Tunze 230/3 skimmer and the
refugium acts as a type of mechanical filter. Sediments
collect and form a mud sandbed. Macroalgae is grown and
harvested here, the other part is with return pump and
H&S 110-F2000 skimmer and carbon. Return pump from
sump is an EHEIM-1260. The sump/refugium has hosted
baby Bangaii cardinalfish that were grown out here with
supplemental feedings. Water bottles on the sump
are used to drip Kalkwasser and makeup water.

A four-stage AquaPro RO/DI unit makes all top-off water for
evaporation and water changes. Basic tank
maintenance includes top-off from evaporation with kalkwasser
(roughly five liters per day) and additives as needed. Once per
week I perform a 5 liter water change. The skimmer cup is
cleaned two to three times per week to keep the skimmers
performing optimally.

Feeding consists of a combination of frozen foods –
gamarus, mysid, artemias, bloodworms and daphnia, krill,
homemade food along with nori, which is fed twice a day.
The refugium is teeming with microfauna, providing another food
source for the fish.

Water Parameters

Ca 350-400

KH 5,0-7,0

pH 8,2-8,4

Nitrate: 0

Phosphate: 0

Fish

1
Zanclus cornutus

1
Zebrasoma flavescens

1
Zebrasoma xanthurum

2
Amphiprion ocelaris
- age 8 years!

1
Pseudocheilinus hexataenia

1
Chrysiptera leucopoma

1
Halichoeres chrysus

2
Pterapogon kauderni

2
Spheromia nematoptera

1
Pseudanthias rubrizonatus

4
Pseudanthias squamipinnis

1
Chelmon rostratus

Corals

Sarcophyton glaucum
and
Sarcophyton
sp.

Gorgonians -
Euplexaura
sp.

Lithophyton arboreum

Sinularia dura

Sinularia brassica

Sinularia
sp.

Capnella imbricata

Pachyclavularia violacea

Clavularia viridis

Clavularia
spp.

colony
Zoanthus
sp.,
Palythoa
sp.

colony mushroom
Discosoma
sp.,
Actinodiscus
sp.

Two greater Host-anemones
live since 1998.

Invertebrates

1
Stenopus hispidus

1
Lysmata debelius

1
Lysmata amboinensis

2
Pagurus
sp.

My English is not great, but I will attempt to
answer any questions that you have.